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Iron that has some carbon is cooled very rapidly from about 1300 degrees F. to close to room temperature . The carbon atoms get in the way of the iron atoms as they form a lattice work in the cooling steel. that makes the steel very hard but very brittle. The the next step is to reheat the iron to about 440 degrees F. that way you get a reasonably hard iron that won't break when you need to use it.
Wiki User
∙ 16y ago
Wiki User
∙ 11y agoif is heated to cherry hot and let it cool down in the ambient temperature
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Why is soft material is preferred to make electomagnet than hard?
I assume you mean "soft iron" ... so that it quickly loses its magnetism when the current flow stops.
What are some examples of hard metals?
. Examples of hard magnets are Aluminum-Nickel-Cobalt (Alnicos) and Strontium-Iron (Ferrites, also known as Ceramics).
Effects of carbon on the mechanical properties of iron alloy?
iron by itself is a very weak metal and it does not find any good use in the industrial applications. when carbon is added to iron as a solid solution it adds strength to it. this gives us the steel alloy. if you refer the iron-iron carbide equilibrium diagram then you will find it amazing how iron and carbon can exhibit different crystal structure this leads to the formation of a lot of variety of steel. steels can be heat treated from being very soft to being very hard and the opposite can be done as well. very tough steels can be made, very ductile steels can be made , very hard steels can be made , etc etc etc etc.,
What are pullips and obitsus made out of?
Pullip: Hard plastic Depending on the Obitsu body type: Hard plastic or Soft Vinyl
Why is soft iron named as soft iron?
Soft iron does not retain magnetism. It can be magnetised and demagnetised quickly and easily. Used as a core for transformers. 'Soft' probably relates to it's submission, when exposed to magnetism. It 'gives in' without too much fuss.
What is soft iron hardness?
Pure iron is relatively soft and easily worked (malleable). Iron heated to high temperatures and alloyed with carbon and other elements is called steel, which can be made extremely hard and durable, but not easily worked.
Is iron hard or soft?
it depends on what state it's in(:
How does soft iorn is different from hard iron?
That depends on what you mean - soft iron is usually the name given to iron that is easily magnetised and demagnetised. In which case it is usually very pure. Mecahnically soft and hard irons have different crystal structures and trace impurities, although iron is more correctly known as steel when it is anything but 100% pure iron.
What is iron hardness?
Pure iron is relatively soft and easily worked (malleable). Iron heated to high temperatures and alloyed with carbon and other elements is called steel, which can be made extremely hard and durable, but not easily worked.
How is a soft ball made and what is it made of?
soft balls are made when you get kicked in the balls hard and made with sperm
Is zinc soft?
Zinc is considered a hard metal; its hardness is similar to that of Iron.
Tire is soft rubber or hard rubber?
They are made both soft and hard, depending on application.
How do you distinguish between soft and hard metals sodium and iron?
Do they do they bend thiner or thicker
What is the difference between hard corals and soft corals?
The difference is in the name; soft corals have a soft body, with no bony or hard parts. In contrast, hard corals have a hard endoskeleton made of calcium carbonate.
Is basalt a soft rock?
Basalt is a relatively heavy iron rich hard rock.
Explain why a magnet can attract pins but not matches?
A magnet is made of 'Soft' Iron. A pin has steel (iron) in it. A match does NOT have iron in it.
Is Uranus soft or hard?
it is made up of gas so thhe answer is soft
